CN201274468Y - Broadband access system for coaxial electric cable network - Google Patents
Broadband access system for coaxial electric cable network Download PDFInfo
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- CN201274468Y CN201274468Y CNU2008201456581U CN200820145658U CN201274468Y CN 201274468 Y CN201274468 Y CN 201274468Y CN U2008201456581 U CNU2008201456581 U CN U2008201456581U CN 200820145658 U CN200820145658 U CN 200820145658U CN 201274468 Y CN201274468 Y CN 201274468Y
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Abstract
The utility model discloses a broadband access system of a coaxial cable network, consisting of a CATV optical receiver, a photoconverter, a coaxial cable modem, a user distributor and a user end. The coaxial cable modem consists of an Ethernet physical layer transceiver unit, a modem body and a coupler; wherein, the modem body consists of a digital-analog converter unit and a signal amplifier unit. The utility model has the advantages that net surfing of a plurality of network devices can be realized through the existing coaxial cables without reconstructing the existing cabling, and the high noise and low safety of power line net surfing can be avoided.
Description
Technical field
The utility model relates to the broadband network field, especially relates to a kind of coaxial cable net broadband access system.
Background technology
Power line communication (Power line Communication) is called for short ＂ PLC ＂, is to utilize the power line of transmitting electricity and powering to carry out the technology of high speed data transfer.Power line spreads all over city and rural area, and PLC passes through the power line transmission data, does not need to set up more circuit and equipment, only needs that modulator-demodulator is inserted power receptacle and just can communicate by letter, and uses simply, and is with low cost, helps the shared and household electrical appliances online of information resources.Home Plug full name is Home Plug Power Line Alliance, is translated into plug-in alliance of family, and this alliance is devoted to set up open power line internet for various Internet appliance products and inserts standard.Its following target is only to need to insert attaching plug and can construct local area network (LAN) on prior mounted Universal Socket.The common power line of application of new technology can transmitting internet data, household electrical appliance such as all phones, facsimile machine, computer and TV, video camera in the future can be directly be interconnected at together with the wire socket of wall.But utilize Home Plug standard technique to transmit the network broadband signal at present on power line, having significant disadvantages is exactly the big and low problem of fail safe of noise.
The utility model content
The purpose of this utility model is to provide a kind of coaxial cable net broadband access system, register one's residence at present broadband and to transform difficulty, make full use of original coaxial cable and come the transmission network broadband signal, need not to transform the online that existing wiring just can realize various network device, can avoid the power line communications problem again, the problem includes: noise is big and the low problem of fail safe.
For achieving the above object, the utility model adopts following structure:
A kind of coaxial cable net broadband access system comprises:
The cable TV optical receiver: the light signal that cable television network is launched converts the signal of telecommunication to;
Photoconverter: the light signal that the data front end is sent here converts the Ethernet data signal of standard to;
Coaxial cable modem: the Ethernet data signal that described photoconverter is sent here is modulated on the frequency range of cable TV network free time, and the TV signal that data-signal is sent here with described cable TV optical receiver is coupled to, and delivers on the distributor of family by coaxial cable;
The family distributor: comprise splitter, the jumper of connecting with splitter and the amplifier in parallel with jumper, the family distributor becomes two-way cable TV network with one-way CATV network, and the signal of coming on the coaxial cable is sent to user side;
The user side part: will be connected to computer through described coaxial cable modem from the low frequency part of the signal of described family distributor, HFS is connected to television set.
Aforesaid coaxial cable net broadband access system, wherein, described coaxial cable modem comprises the ethernet physical layer Transmit-Receive Unit, modulation body and coupler, the modulation body connects with the ethernet physical layer Transmit-Receive Unit, the ethernet physical layer Transmit-Receive Unit connects with ethernet line by the Ethernet interface unit, and the modulation body is connected in coaxial cable through coupler.
Aforesaid coaxial cable net broadband access system, wherein, described modulation body comprises D/A conversion unit and signal amplification unit, and D/A conversion unit is connected in described ethernet physical layer Transmit-Receive Unit, and is connected in described coupler by signal amplification unit.
The beneficial effects of the utility model are to make full use of existing coaxial cable, need not to transform the online that existing wiring just can realize various network device, can avoid the power line communications problem again, the problem includes: noise is big and the low problem of fail safe.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the functional-block diagram of coaxial cable modem of the present utility model.
The primary clustering symbol description:
The 1-cable TV optical receiver 2-photoconverter 3-coaxial cable modem 31-ethernet physical layer Transmit-Receive Unit 32-modulation body 33-coupler 321-D/A conversion unit 322-signal amplification unit 4-family distributor 41-first splitter 42-jumper 43-amplifier 5-user side 51-second splitter 53-television set 54-computer
Embodiment
As shown in Figure 1, be the structural representation of a kind of coaxial cable net of the utility model broadband access system, native system comprises:
Cable TV optical receiver 1: convert the light signal of TV signal the processing unit of the signal of telecommunication to, the TV signal of its output is delivered to described coaxial cable modem 3;
Photoconverter 2: the light signal that the data front end is sent here converts the Ethernet data signal of standard to;
Coaxial cable modem 3: the Ethernet data signal that described photoconverter 2 is sent here is modulated on the frequency range of cable TV network free time, and the TV signal that data-signal is sent here with described cable TV optical receiver 1 is coupled to, and delivers on the described family distributor 4 by coaxial cable;
Family distributor 4: comprise first splitter 41, the jumper 42 of connecting and the amplifier 43 in parallel with jumper 42 with first splitter 41, family distributor 4 becomes two-way cable TV network with one-way CATV network, and the signal of coming on the coaxial cable is sent to described user side 5;
User side 5: comprise second splitter 51, the television set 53 that is connected with second splitter 51, the described coaxial cable modem 3 that is connected with second splitter 51, second splitter 51 will be divided into several signals from the signal of family distributor 4 and deliver to television set 53 and described coaxial cable modem 3, from the low frequency part of the signal of second splitter 51 through described coaxial cable modem 3 transfers to computer 54, HFS is connected to television set 53.
The handling process of the data-signal of native system:
Downlink data (i.e. direction from the local side to the user side): the light signal of bringing from the IP central machine room converts the Ethernet data signal of standard to through described photoconverter 2, again through described coaxial cable modem 3, the Ethernet data signal is modulated onto on the frequency range of cable TV network free time, and the TV signal of sending here with described cable TV optical receiver 1 is coupled to, deliver on the described family distributor 4 by coaxial cable, described family distributor 4 is sent to the signal of bringing described user side 5 again, and the described coaxial cable modem 3 of last described user side 5 converts the low frequency part of signal the Ethernet digital signal of standard to and delivers to computer 54.
Upstream data (i.e. direction from the user side to the local side): deliver to described coaxial cable modem 3 from the Ethernet data signal of the standard of computer output, and be modulated onto on the frequency range of cable TV network free time, be transferred on the described family distributor 4 by coaxial cable, after described coaxial cable modem 3 receives the signal that described family distributor 4 comes, data-signal is converted to the Ethernet data signal of standard, convert light signal to through described photoconverter 2 again, be sent to the IP central machine room by optical cable at last.
As shown in Figure 2, coaxial cable modem 3 of the present utility model, it comprises ethernet physical layer Transmit-Receive Unit 31, modulation body 32 and coupler 33, modulation body 32 connects with ethernet physical layer Transmit-Receive Unit 31, ethernet physical layer Transmit-Receive Unit 31 connects with ethernet line by the Ethernet interface unit, modulation body 32 is connected in coaxial cable through coupler 33, modulation body 32 comprises D/A conversion unit 321 and signal amplification unit 322, D/A conversion unit 321 is connected in described ethernet physical layer Transmit-Receive Unit 31, and is connected in described coupler 33 by signal amplification unit 322.
The digital signal of coming from ethernet line passes to ethernet physical layer Transmit-Receive Unit 31 by the Ethernet interface unit, pass to D/A conversion unit 321 again and convert analog signal to, deliver to signal amplification unit 322 then and amplify, be coupled on the coaxial cable by coupler 33 at last.
The analog passband signal overcoupling device 33 of coming from coaxial cable is coupled to signal amplification unit 322, deliver to D/A conversion unit 321 through signal amplification circuit 322 amplified analog signal and convert digital signal to, pass to ethernet physical layer Transmit-Receive Unit 31 again, pass on the ethernet line by the Ethernet interface unit at last.
The INT6300 that described D/A conversion unit 321 can adopt INTELLON company to provide, the I60 that described signal amplification unit 322 can adopt INTELLON company to provide, INT6300 is the power line communications IC of a Home of the meeting Plug standard that provides of INTELLON company, here Home Plug technology is applied on the coaxial cable online, can avoid power line communications problems the problem includes: noise greatly and the low problem of fail safe.
The kernel of INT6300 is 32 risc processors (microprocessor that Reduced Instruction Set Computer adopts) of ARM926EJ-S, and the software of system is stored among the jumbo SPI FLASH (high-speed synchronous serial port flash memory).In the time of can system start-up being set, start-up code leaves among the SPIFLASH.When system start-up, all programs copy among the SDRAM (Synchronous Dynamic Random Access Memory).INT6300 has 3 kinds of mode of operations: MII PHY pattern, MII MAC pattern, PCI pattern are set to MII MAC mode of operation at this.
INT6300 and PHY chip link, PHY is connected in ethernet line by a RJ45 interface, the data-signal that ethernet line is come passes to the PHY chip by RJ45, pass to INT6300 by the MII interface again, INT6300 becomes analog signal to data-signal, analog signal is amplified through the I60 amplifying circuit again, is coupled on the coaxial cable through coupler then, and the signal frequency range that sends on the coaxial cable is: 2MHz-28MHz.
The signal of coming on the coaxial cable passes to the coaxial cable receiving unit of coupler, the coaxial cable receiving unit of coupler is the bandwidth-limited circuit of a LC, the frequency range of this bandpass filtering is 2MHz-28MHz, after the signal that the process coupler comes out amplifies through the I60 amplifying circuit, deliver to INT6300 again, INT6300 becomes data-signal to analog signal, and data-signal passes to the PHY chip by the MII interface, passes on the ethernet line by RJ45 again.
Because coaxial cable is a kind of bus of shared formula, so INT6300 should be operated under the semiduplex mode, when promptly launching, the circuit of receiving unit is not worked, and during reception, radiating portion is not worked.
Claims (3)
1, a kind of coaxial cable net broadband access system, it is characterized in that: described system comprises:
The cable TV optical receiver: the light signal that cable television network is launched converts the signal of telecommunication to;
Photoconverter: the light signal that the data front end is sent here converts the Ethernet data signal of standard to;
Coaxial cable modem: the Ethernet data signal that photoconverter is sent here is modulated on the frequency range of catv network free time, and the TV signal that data-signal is sent here with the CATV optical receiver is coupled to, and delivers on the distributor of family by coaxial cable;
The family distributor: comprise splitter, the jumper of connecting with splitter and the amplifier in parallel with jumper, the family distributor becomes two-way cable TV network with one-way CATV network, and the signal of coming on the coaxial cable is sent to user side;
User side: will be connected to computer through coaxial cable modem from the low frequency part of the signal of family distributor, HFS is connected to television set.
2, coaxial cable net broadband access system according to claim 1, it is characterized in that: described coaxial cable modem comprises the ethernet physical layer Transmit-Receive Unit, modulation body and coupler, the modulation body connects with the ethernet physical layer Transmit-Receive Unit, the ethernet physical layer Transmit-Receive Unit connects with ethernet line by the Ethernet interface unit, and the modulation body is connected in coaxial cable through coupler.
3, coaxial cable net broadband access system according to claim 2, it is characterized in that: described modulation body comprises D/A conversion unit and signal amplification unit, D/A conversion unit is connected in described ethernet physical layer Transmit-Receive Unit, and is connected in described coupler by signal amplification unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201456581U CN201274468Y (en) | 2008-09-23 | 2008-09-23 | Broadband access system for coaxial electric cable network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201456581U CN201274468Y (en) | 2008-09-23 | 2008-09-23 | Broadband access system for coaxial electric cable network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274468Y true CN201274468Y (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201456581U Expired - Lifetime CN201274468Y (en) | 2008-09-23 | 2008-09-23 | Broadband access system for coaxial electric cable network |
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| CN (1) | CN201274468Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841444A (en) * | 2010-04-06 | 2010-09-22 | 福建金钱猫电子科技有限公司 | Device for realizing broadband access by utilizing coaxial cable |
| CN102395021A (en) * | 2011-10-26 | 2012-03-28 | 常熟市高事达光电科技有限公司 | CATV (Cable Television) amplifier capable of being upgraded to EOC (Ethernet Over Coax) local-side optical receiver circuit |
| CN102437940A (en) * | 2011-09-14 | 2012-05-02 | 福建金钱猫电子科技有限公司 | Photoelectric conversion access device |
| CN111163021A (en) * | 2020-01-06 | 2020-05-15 | 厦门狄耐克智能科技股份有限公司 | Data conversion transmission equipment based on two lines |
-
2008
- 2008-09-23 CN CNU2008201456581U patent/CN201274468Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841444A (en) * | 2010-04-06 | 2010-09-22 | 福建金钱猫电子科技有限公司 | Device for realizing broadband access by utilizing coaxial cable |
| CN102437940A (en) * | 2011-09-14 | 2012-05-02 | 福建金钱猫电子科技有限公司 | Photoelectric conversion access device |
| CN102437940B (en) * | 2011-09-14 | 2014-03-19 | 福建金钱猫电子科技有限公司 | Photoelectric conversion access device |
| CN102395021A (en) * | 2011-10-26 | 2012-03-28 | 常熟市高事达光电科技有限公司 | CATV (Cable Television) amplifier capable of being upgraded to EOC (Ethernet Over Coax) local-side optical receiver circuit |
| CN111163021A (en) * | 2020-01-06 | 2020-05-15 | 厦门狄耐克智能科技股份有限公司 | Data conversion transmission equipment based on two lines |
| CN111163021B (en) * | 2020-01-06 | 2022-05-27 | 厦门狄耐克智能科技股份有限公司 | Data conversion transmission equipment based on two lines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Broadband access system for coaxial electric cable network Effective date of registration: 20130816 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: Fujian Jinqianmao Electronic Technology Co., Ltd. Registration number: 2013350000015 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141014 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: Fujian Jinqianmao Electronic Technology Co., Ltd. Registration number: 2013350000015 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Broadband access system for coaxial electric cable network Effective date of registration: 20141014 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: Fujian Jinqianmao Electronic Technology Co., Ltd. Registration number: 2014350000044 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINQIANMAO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FUJIAN JINQIANMAO ELECTRONIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Riverside Road, Taijiang District of Fuzhou City, Fujian province 350009 eternal No. 58 building room 506 Patentee after: JINQIANMAO TECHNOLOGY CO., LTD. Address before: Riverside Road, Taijiang District of Fuzhou City, Fujian province 350000 No. 58 (eternal mall) Patentee before: Fujian Jinqianmao Electronic Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Riverside Road, Taijiang District of Fuzhou City, Fujian province 350009 No. 58 Building 2 layer 01 eternal Patentee after: JINQIANMAO TECHNOLOGY CO., LTD. Address before: Riverside Road, Taijiang District of Fuzhou City, Fujian province 350009 eternal No. 58 building room 506 Patentee before: JINQIANMAO TECHNOLOGY CO., LTD. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150728 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: JINQIANMAO TECHNOLOGY CO., LTD. Registration number: 2014350000044 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Broadband access system for coaxial electric cable network Effective date of registration: 20151106 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: JINQIANMAO TECHNOLOGY CO., LTD. Registration number: 2015350000083 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161114 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: JINQIANMAO TECHNOLOGY CO., LTD. Registration number: 2015350000083 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Broadband access system for coaxial electric cable network Effective date of registration: 20161118 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: JINQIANMAO TECHNOLOGY CO., LTD. Registration number: 2016350000133 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171127 Granted publication date: 20090715 Pledgee: China bank Limited by Share Ltd Fuzhou Jinan Branch Pledgor: JINQIANMAO TECHNOLOGY CO., LTD. Registration number: 2016350000133 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |